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Rieju · Overhead-cam four-stroke twin, wet sump, gearbox shares engine oil, chain drive

Aventura 500

Library entry covers 2025

38 factory 52 guideline

Published source

Rieju Aventura 500 Euro 5 Owner's Manual, maintenance table (official PDF pp.115-116)

Factory source. Covers Rieju Owner's Manual AVENTURA 500 EURO 5 (English; 2024 per the file name only, no year in the pages read); the row is 2025.

90 items for a 2025 model, grouped by interval the way a factory chart is laid out.

How this bike is built (what the schedule is based on)

Engine cycle: Four-stroke
Engine lubrication: Wet sump (oil in crankcase)
Oil filtration: Replaceable cartridge or spin-on filter
Valve gear: Overhead cam, screw/locknut adjusters
Ignition: Electronic (CDI / transistor / ECU)
Charging: Alternator / stator with rectifier
Battery: Wet cell (flooded lead-acid, needs topping up)
Fuel system: Fuel injection
Cooling: Liquid cooled
Primary drive: Gear or chain inside engine, shares engine oil
Gearbox oil: Shares engine oil
Clutch control: Hand lever, cable
Final drive: Chain
Front suspension: Telescopic fork
Rear suspension: Swingarm, single shock / cantilever
Front brake: Disc, hydraulic
Rear brake: Disc, hydraulic
Wheels: Spoked, tubed
Sidecar: No sidecar

Maintenance schedule

2025 Rieju Aventura 500

On the road: every 200 mi

1 item

Check engine oil level

Pre-ride / on the road

Guideline

Each fuel stop on old machines. Dry sump: check the tank hot, engine idling or just stopped, per your manual.

On the road: every 300 mi

3 items

Check lights, horn, brake light switches

Pre-ride / on the road

Guideline
Check tire pressures

Pre-ride / on the road

Guideline
Lubricate drive chain

Pre-ride / on the road

Guideline

Lube warm, ideally at the end of the riding day so it soaks in overnight. Sooner after rain.

On the road: every 500 mi

1 item

Check coolant level

Pre-ride / on the road

Guideline

On the road: every 600 mi

1 item

Check chain slack and rear wheel alignment

Pre-ride / on the road

Guideline

Every 1,000 mi or 6 months

1 item

Inspect tire tread, sidewalls and date codes

Wheels and tires

Guideline

Every 3,000 mi or 12 months

10 items

Check throttle cable(s) free play and return

Fuel and air

Guideline
Clean drive chain thoroughly (remove and soak, re-lube)

Final drive

Guideline

Non O-ring chains on old machines: remove, clean, soak in hot chain grease or lube, refit with the master link clip closed end leading.
Inspect chain and sprockets for wear (measure stretch)

Final drive

Guideline
Check steering head bearing adjustment

Front end

Guideline
Inspect fork seals, stanchions and fork boots

Front end

Guideline
Check footrests, pegs, rear brake and gear lever pivots

Rear suspension and frame

Guideline
Grease and check center / side stand and springs

Rear suspension and frame

Guideline
Check brake pads and discs

Brakes

Guideline
Check spoke tension and wheel true

Wheels and tires

Guideline
Check wheel bearings for play

Wheels and tires

Guideline

Every 4,000 mi or 12 months

2 items

Inspect, clean and gap spark plugs

Engine

Guideline
Adjust clutch free play, lubricate cable and lever pivot

Primary and gearbox

Guideline

Every 4,971 mi

23 items

Coolant and level (check)

Engine

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500, 8,500 and 16,500 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Electrical system (check)

Engine

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km, then every 8,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Engine oil (change)

Engine

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km, then every 8,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Engine screws and nuts (check)

Engine

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km, then every 8,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Exhaust system (check)

Engine

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km, then every 8,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Oil filter (change)

Engine

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km, then every 8,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Oil pump operation (check)

Engine

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km, then every 8,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Piston ring wear (check)

Engine

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 16,500 and 24,500 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Screws and nuts on each component (check)

Engine

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km, then every 8,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Spark plug (check)

Engine

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500, 8,500 and 16,500 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Fuel line (check)

Fuel and air

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km, then every 8,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Battery (check)

Ignition and electrics

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500, 8,500 and 16,500 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Clutch (check)

Primary and gearbox

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 16,500 and 24,500 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Transmission and sump leaks (check)

Primary and gearbox

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km, then every 8,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Drive chain tension and wear (check and grease)

Final drive

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km, then every 8,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Steering and handlebar (check)

Front end

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km, then every 8,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Brake discs (check)

Brakes

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500, 8,500 and 24,500 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Brake fluid (check)

Brakes

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500, 8,500 and 16,500 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Brake mechanism and linings (check)

Brakes

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km, then every 8,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Brake pads (check at 500 km; change)

Brakes

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): change every 8,000 km from 8,500 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Tires: pressure and condition (check)

Wheels and tires

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km, then every 8,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Wheel spoke tension and rim run-out (check)

Wheels and tires

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km, then every 8,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Controls, throttle and cable operation (check)

Controls and cables

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km, then every 8,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.

Every 5,000 mi or 12 months

2 items

Change engine oil

Engine

Guideline

Pre-1970 machines: many owners run non-detergent or classic-spec oil with no filter, so short intervals matter. Dry sump: drain the tank and the crankcase/sump, flush the tank and clean the feed and return screens.
Replace oil filter

Engine

Guideline

Every 6,000 mi or 12 months

7 items

Inspect coolant hoses and clamps

Engine

Guideline
Clean / inspect air filter

Fuel and air

Guideline

Mesh or oiled foam: clean and re-oil. Paper: blow out or replace. Some very early machines have no filter at all.
Check charging voltage and regulator / cut-out

Ignition and electrics

Guideline
Check swingarm bushes for play

Rear suspension and frame

Guideline
Inspect rear shocks for leaks and damping

Rear suspension and frame

Guideline
Lubricate control cables and lever pivots

Controls and cables

Guideline
Lubricate speedometer / tachometer cables, check drive

Controls and cables

Guideline

A dry speedo cable whips the needle and eventually kills the instrument.

Every 8,000 mi or 2 years

1 item

Check and adjust valve clearances

Engine

Guideline

Every 9,942 mi

5 items

Air filter (change)

Fuel and air

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 8,500 and 24,500 km (every 16,000 km); also at 32,500 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Air filter (clean and grease)

Fuel and air

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km and 16,500 km; also at 32,500 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Carburetor (inspect and adjust)

Fuel and air

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 and 16,500 km; the 32,500 km column reads +6,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Center stand and side stand (check and grease)

Rear suspension and frame

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km, then every 16,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Shock absorbers and front/rear suspension (check)

Rear suspension and frame

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 500 km, then every 16,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.

Every 10,000 mi or 2 years

1 item

Compression test (or leak-down)

Engine

Guideline

Every 10,253 mi

1 item

Brake discs (change)

Brakes

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 16,500 km; the 32,500 km column reads check, change every +7,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.

Every 12,000 mi or 2 years

4 items

Replace air filter element

Fuel and air

Guideline
Synchronize throttle bodies

Fuel and air

Guideline
Clean and grease rear suspension linkage

Rear suspension and frame

Guideline
Grease swingarm pivot

Rear suspension and frame

Guideline

Every 14,913 mi

1 item

Valve clearance (check and adjust)

Engine

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 24,500 km, then every 24,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.

Every 15,000 mi or 3 years

1 item

Change fork oil

Front end

Guideline

Some early telescopic forks are grease filled or use very small oil quantities. Check your manual.

Every 15,224 mi

8 items

Coolant (change)

Engine

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 24,500 km; the 32,500 km column reads check, change every +10,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Cylinder head, cylinder and piston (check)

Engine

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 24,500 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Spark plug (change)

Engine

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 24,500 km; the 32,500 km column reads check, change every +10,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Battery (change)

Ignition and electrics

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 24,500 km; the 32,500 km column reads check, change every +10,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Drive chain (change)

Final drive

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 24,500 km; the 32,500 km column reads check, change every +10,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Timing chain (check)

Final drive

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 24,500 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Brake fluid (change)

Brakes

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 24,500 km; the 32,500 km column reads check, change every +10,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.
Tires (change)

Wheels and tires

Factory

Factory: Maintenance table (manual pp.115-116, PDF pp.115-116): at 24,500 km; the 32,500 km column reads check, change every +10,000 km. Columns as printed: 500, 8,500, 16,500, 24,500 and 32,500 km. Codes: I check and adjust; C change; E grease; L clean. Some cells in the 32,500 km column add a further interval (for example "I - C (+10.000 Km)"). The schedule may change with use and conditions.

Every 16,000 mi or 4 years

1 item

Replace spark plugs

Engine

Guideline

Every 18,000 mi

1 item

Replace chain and sprockets (wear based)

Final drive

Guideline

Every 20,000 mi or 4 years

2 items

Repack / replace steering head bearings

Front end

Guideline

Many old machines use loose balls in cups and cones. Taper roller conversions are common.
Repack / replace wheel bearings

Wheels and tires

Guideline

Cup-and-cone and taper roller hubs need periodic repacking and adjustment.

Every 24,000 mi or 4 years

1 item

Replace fuel filter

Fuel and air

Guideline

Every 25,000 mi or 6 years

1 item

Replace swingarm bushes / bearings

Rear suspension and frame

Guideline

Every 30,000 mi or 6 years

1 item

Rebuild forks: seals, bushes, springs

Front end

Guideline

Every 6 months

1 item

Clean battery terminals, check charge and strap

Ignition and electrics

Guideline

Every 2 years

4 items

Replace coolant

Engine

Guideline
Inspect wiring, bullet connectors and ground points

Ignition and electrics

Guideline
Inspect frame, welds and lugs for cracks

Rear suspension and frame

Guideline
Replace brake fluid

Brakes

Guideline

Every 4 years

3 items

Replace fuel lines

Fuel and air

Guideline

Old rubber and modern ethanol fuel do not mix well.
Inspect brake hoses; replace old rubber

Brakes

Guideline
Rebuild calipers and master cylinders (seals)

Brakes

Guideline

Every 6 years

2 items

Replace inner tubes and rim tape with tires

Wheels and tires

Guideline
Replace tires on age (regardless of tread)

Wheels and tires

Guideline

Guideline lines: Intervals here are general guidelines for the machine's era and layout, compiled for this app. They are not factory manual figures. Check your workshop manual, and edit any interval in the bike's Schedule tab.